The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1976
Filed:
Jun. 18, 1974
Applicant:
Inventors:
John Grey Dingwall, Brooklands Sale, EN;
Peter Miles, Stockport, EN;
Donald Richard Randell, Stockport, EN;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 252 32 ; 252 33 ; 252 377 ; 252 47 ; 252 482 ;
Abstract
Novel 4-(3,5-dialkyl-4-hydroxyphenyl)-1,2-dithiole-3-thiones are used as additives for organic materials. They are prepared by reacting a corresponding alkylated phenol with sulfur and if necessary reacting the resulting compound with sodium disulphide and then with a corresponding halide.